the first state in the country to legalize the drug forrecreationaluse. thisis where you cheer or boo. but as john blackstone temperatures us, even those who must enforce the law are foggy on details. >> reporter: at seattle police headquarters given the task of explaining the new marijuana law. what do you call it? >> marijwhatnow. it's a guide. >> reporter: a lot of people are saying that. it will take a year for the state to write regulations for selling marijuana legally. that leaves confusing gaps. it's still illegal to smoke pot publicly. you can possess it. you can buy it, but nobody is allowed to sell it. nobody is allowed to grow it right now either. how do you get legal pot? >> i couldn't tell you. >> reporter: the new law passed with 56% of the vote. supporters say it will save police and courts time and money. since 2001 more than 130,000 people have been arrested in washington state for marijuana possession. legal marijuana sales could generate washington $500 million a year in taxes and business. opponents worry legalization will lead to more people using drugs. >> t